I was busy misconfiguring my Gnome configs when the following happened:
1) gpilotd (using the visor USB module) ate 100% CPU and a lot of memory
2) I disconnected my Palm from the USB port and killed gpilotd
3) The system kept performing but Nautilus (file manager) had hanged
4) I killed Nautilus and the system went down at the same time
(notice famd is running so killing Nautilus may have cause
events sent to the kernel by famd).

Not sure this is related but this is what happened.

The kernel would not respond to anything:
1) keyboard/mouse not functional
2) I could ping the kernel from an other PC on the LAN but it stopped
responding after about 5-10 seconds.

There are multiple Oopses int the trace. the first ones are general
page allocation faults (could be due to gpilotd eating the memory)
but the last traces show race conditions. This is bad.